1 Supplementing ACS: The LEHD Program Jeremy S. Wu Marc Roemer U.S. Census Bureau May 12, 2005...
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Transcript of 1 Supplementing ACS: The LEHD Program Jeremy S. Wu Marc Roemer U.S. Census Bureau May 12, 2005...
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Supplementing ACS:The LEHD Program
Supplementing ACS:The LEHD Program
Jeremy S. WuMarc Roemer
U.S. Census Bureau
May 12, 2005
Jeremy S. WuMarc Roemer
U.S. Census Bureau
May 12, 2005
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OverviewOverview
Similarities and differencesSample enhancements
Geo-coding for ACSMultiple job holdingsMapping pilot
How else can LEHD supplement ACS
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Longitudinal Employer-Household Dynamics Program(LEHD)
SurveysAdministrative
RecordsCensuses
LocalEmployment
Dynamics
LocalTransportation
Dynamics
LocalImmigrationDynamics
The LEHD ConceptThe LEHD Concept
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Similarities and DifferencesSimilarities and Differences
Long Form(CTTP)
ACS LEHD
Frame HHs & GQs HHs & GQs UI Workers/Firms
Sample rate ~ 1 in 6Per year
~ 1 in 8Over 5 years
~ 1 in 14 times a year
Release
FrequencyDecennial Annual Quarterly
Coverage Nationwide Nationwide 39 states ↑
Reference Period
Week Week Quarter
Availability No Yes Yes
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Long Form(CTTP)
ACS LEHD
Primary Jobs
Yes Yes Yes
Other Jobs No No Yes
Self-employed
Yes Yes To be added
Federal employment
Yes Yes To be added
Link to firms No No Yes
Link to employ hist
No No Yes
Similarities and DifferencesSimilarities and Differences
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Long Form(CTTP)
ACS LEHD
Informal economy
Some Not ID
Some Not ID
Some Not ID
HH statistics Yes Yes To be added
Commute time/mode
Yes Yes To be added
Tract/TAZ data avail.
Every 10 years
5 year average
Quarterly
Race/ ethnicity
Yes Yes To be added
Similarities and DifferencesSimilarities and Differences
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• Multiple and Single Job Holders – not readily available from ACS
• Geo-code Enhancement – already ongoing collaborative effort
• Mapping Pilot – great potential for transportation planning/analysis
Sample Enhancements with ACSSample Enhancements with ACS
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Using LEHD data, which census tracts in a Metropolitan Statistical Area may have high second/multiple job holders?
Multiple and Single Job HoldersMultiple and Single Job Holders
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• Missing place of work geo-codes in ACS can be supplemented by LEHD geo-codes before going to clerical operations
• Up to 65% enhancements may be expected
Geo-Code EnhancementGeo-Code Enhancement
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Matching rates of geo-codes for 127,000 single-unit employer work address
2001-2002, 2004 ACS and LEHD
Geo-Code EnhancementGeo-Code Enhancement
Bothgeo-codes
certain
Both geo-codes less certain
Census tracts 70% 60%
County 90% 90%
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HomeBlock
(U/I Wage Data)
Workplace Block
(ES-202 Data)
# of Workers (primary job) and # of Jobs
• Home Profile - block group• # workers• Worker distribution
• by age range (3)• by earnings range (3)• by industry (20 NAICS)
• Work Profile - block group• # establishments• # workers• Worker distribution
• by age range (3)• by earnings range (3)• by industry (20 NAICS)
• Demand/growth indicators• Job creation/loss• Hires/separations• Earnings hires/separations
All files have been approved by Census Bureau Disclosure
Review Board
LEHD Origin-Destination DatabaseLEHD Origin-Destination Database
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HomeBlock
(U/I Wage Data)
Workplace Block
(ES-202 Data)
# of Workers (primary job) and # of Jobs
• Home Profile - block group• # workers• Worker distribution
• by age range (3)• by earnings range (3)• by industry (20 NAICS)
• Work Profile - block group• # establishments• # workers• Worker distribution
• by age range (3)• by earnings range (3)• by industry (20 NAICS)
• Demand/growth indicators• Job creation/loss• Hires/separations• Earnings hires/separations
Subject to approval by Census Bureau Disclosure Review
Board
Potential Enhancements with ACSPotential Enhancements with ACSDrive Time
Transport ModeDrive Distance
(ACS data)
Drive TimeTransport ModeDrive Distance
(ACS data)
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COMMUTE SHED PROFILE REPORT – Richmond Corridor Area Example
Selected Area Characteristics – Workers Living In-Area 2002
Count Share
Workers (Based on Location of Primary Job) 6,216 100%
Workers by Age * Under age 30 1,926 31% * Age 30 to 54 3,267 53% * Age 55 or older 1,023 16%
Workers by Earnings Paid * Under $15K 1,986 32% * $15K to $39K 2,696 43% * $40K or more 1,534 25%
Workers by Primary Industry (2-digit NAICS – Top 10) * Retail Trade 931 15% * Health Care and Social Assistance 716 12% * Finance and Insurance 554 9% * Accommodation and Food Service 515 8% * Professional, Scientific, and Technical Services 459 7% * Educational Services 431 7% * Manufacturing 390 6% * Admin. & Support, Waste Mgmt and Remediation 315 5% * Construction 305 5% * Mgmt of Companies and Enterprises 280 4% * All other industries 1,320 22%
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COMMUTE SHED PROFILE REPORT – Richmond Corridor Area Example Commute Shed Characteristics – Workplace Destinations 2002 Count Share Workers (Based on Place of Residence) 6,216 100% Destination Cities/Townships Where Workers are Employed (Rank ordered listing) * Richmond 1,271 24% * Three Chopt 1,077 20% * Brookland 658 12% * Varina 287 5% * Fairfield 221 4% * Tuckahoe 181 3% * All other cities or townships 2,521 41%
Source: LED Worker Origin/Destination Virginia Database (Employed Workers 2nd Qtr 2002) LED Quarterly Workforce Index (Full 2nd Quarter Jobs – 2002)
Companion Report with LEHD MapsCompanion Report with LEHD Maps
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LABOR SHED PROFILE REPORT – Richmond Corridor Area Example
Selected Area Characteristics – In-Area Employment 2002
Count Share
Number of Employers 621
Workers (Based on Location of Primary Job) 12,878 100%
Workers by Age * Under age 30 4,505 35% * Age 30 to 54 6,796 53% * Age 55 or older 1,577 12%
Workers by Earnings Paid * Under $15K 5,752 45% * $15K to $39K 4,166 32% * $40K or more 2,960 23%
Workers by Primary Industry (2-digit NAICS – Top 10) * Admin. & Support, Waste Mgmt and Remediation 2,077 16% * Accommodation and Food Services 1,709 13% * Retail Trade 1,617 13% * Health Care and Social Assistance 1,592 12% * Professional, Scientific, and Technical Services 1,521 12% * Finance and Insurance 908 7% * Construction 856 7% * Mgmt of Companies and Enterprises 803 6% * Wholesale Trade 721 6% * Real Estate and Rental and Leasing 344 3% * All other industries 730 6%
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LABOR SHED PROFILE REPORT – Richmond Corridor Area Example
Selected Area Characteristics – In-Area Employment 2002
Count Share
Quarterly Workforce Indicators (2nd Qtr) * Total number of QWI jobs 8,487 100% * Number of jobs created 755 9% * Number of jobs eliminated 425 5% * Number of worker separations 1,016 12%
- Avg. earnings of separated workers $1,360 * Number of new hires 1,107 13%
- Avg. earnings of new Hires $2,399 Labor Shed Characteristics – Where Workers Come From 2002 Count Share
Workers (Based on Location of Primary Job) 12,878 100% Cities/Townships Where Workers Originate (Rank ordered listing) * Richmond 1,513 12% * Three Chopt 851 7% * Brookland 743 6% * Tuckahoe 741 6% * Fairfield 440 3% * All other cities or townships 8,590 66%
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• Provide data not previously available– E.g., environmental justice analysis: impact of
transportation construction on a local community
• Small area estimation– Can alleviate small sample size issues– Almost complete coverage on workers
• Confidentiality protection– No longer at the expense of data availability– State-of-the-art methods on synthetic data already
in use
LEHD Supplementing ACSLEHD Supplementing ACS
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• Making gains on operational efficiency– E.g., Geo-code enhancements
• Filling temporal or data gaps– E.g., primary and secondary job holders– E.g., longitudinal data to show the
dynamics of trends and patterns at quarterly intervals
LEHD Supplementing ACSLEHD Supplementing ACS
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• Research and development– Adding new data sources - integration with
transportation-related administrative records and surveys; e.g., federal employment
– Adding new variables – race/ethnicity; drive time/distance; transport mode
– Improving the physical addresses of multi-unit establishments
– Customizing and meeting existing or new data requirements for transportation planning or analysis
LEHD Supplementing ACSLEHD Supplementing ACS
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“LEHD … is the next generation of data collection and dissemination for the Census Bureau.”
Charles Louis KincannonDirector
U.S. Census Bureau
Before the House Subcommittee on Federalism and the CensusMay 10, 2005
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LED Contact InformationLED Contact Information
Program Manager Jeremy Wu
Communications & Marketing ManagerJennifer Marks
http://lehd.dsd.census.gov